Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11gl.c @ 4092:2b32a416d202 SDL-1.2
Set an error message when SDL_GL_SetAttribute() fails because we can't support
the attribute on X11.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Mon, 06 Aug 2007 18:36:46 +0000 |
| parents | 5ec68276e4de |
| children | a1b03ba2fcd0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
|
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 #include "SDL_x11video.h" | |
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25 #include "../../events/SDL_events_c.h" |
| 0 | 26 #include "SDL_x11dga_c.h" |
| 27 #include "SDL_x11gl_c.h" | |
| 28 | |
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29 #if defined(__IRIX__) |
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30 /* IRIX doesn't have a GL library versioning system */ |
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31 #define DEFAULT_OPENGL "libGL.so" |
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32 #elif defined(__MACOSX__) |
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33 #define DEFAULT_OPENGL "/usr/X11R6/lib/libGL.1.dylib" |
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34 #elif defined(__QNXNTO__) |
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35 #define DEFAULT_OPENGL "libGL.so.3" |
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36 #elif defined(__OpenBSD__) |
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37 #define DEFAULT_OPENGL "libGL.so.4.0" |
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38 #else |
| 0 | 39 #define DEFAULT_OPENGL "libGL.so.1" |
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40 #endif |
| 0 | 41 |
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42 #ifndef GLX_ARB_multisample |
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43 #define GLX_ARB_multisample |
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44 #define GLX_SAMPLE_BUFFERS_ARB 100000 |
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45 #define GLX_SAMPLES_ARB 100001 |
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46 #endif |
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47 |
| 1737 | 48 #ifndef GLX_EXT_visual_rating |
| 49 #define GLX_EXT_visual_rating | |
| 50 #define GLX_VISUAL_CAVEAT_EXT 0x20 | |
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51 #define GLX_NONE_EXT 0x8000 |
| 1737 | 52 #define GLX_SLOW_VISUAL_EXT 0x8001 |
| 53 #define GLX_NON_CONFORMANT_VISUAL_EXT 0x800D | |
| 54 #endif | |
| 55 | |
| 56 #if SDL_VIDEO_OPENGL_GLX | |
| 57 static int glXExtensionSupported(_THIS, const char *extension) | |
| 58 { | |
| 59 const char *extensions; | |
| 60 const char *start; | |
| 61 const char *where, *terminator; | |
| 62 | |
| 63 /* Extension names should not have spaces. */ | |
| 64 where = SDL_strchr(extension, ' '); | |
| 65 if ( where || *extension == '\0' ) { | |
| 66 return 0; | |
| 67 } | |
| 68 | |
| 69 extensions = this->gl_data->glXQueryExtensionsString(GFX_Display,SDL_Screen); | |
| 70 /* It takes a bit of care to be fool-proof about parsing the | |
| 71 * OpenGL extensions string. Don't be fooled by sub-strings, etc. | |
| 72 */ | |
| 73 | |
| 74 start = extensions; | |
| 75 | |
| 76 for (;;) { | |
| 77 where = SDL_strstr(start, extension); | |
| 78 if (!where) break; | |
| 79 | |
| 80 terminator = where + strlen(extension); | |
| 81 if (where == start || *(where - 1) == ' ') | |
| 82 if (*terminator == ' ' || *terminator == '\0') return 1; | |
| 83 | |
| 84 start = terminator; | |
| 85 } | |
| 86 return 0; | |
| 87 } | |
| 88 #endif /* SDL_VIDEO_OPENGL_GLX */ | |
| 89 | |
| 0 | 90 XVisualInfo *X11_GL_GetVisual(_THIS) |
| 91 { | |
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92 #if SDL_VIDEO_OPENGL_GLX |
| 0 | 93 /* 64 seems nice. */ |
| 94 int attribs[64]; | |
| 95 int i; | |
| 96 | |
| 97 /* load the gl driver from a default path */ | |
| 98 if ( ! this->gl_config.driver_loaded ) { | |
| 99 /* no driver has been loaded, use default (ourselves) */ | |
| 100 if ( X11_GL_LoadLibrary(this, NULL) < 0 ) { | |
| 101 return NULL; | |
| 102 } | |
| 103 } | |
| 104 | |
| 105 /* See if we already have a window which we must use */ | |
| 106 if ( SDL_windowid ) { | |
| 107 XWindowAttributes a; | |
| 108 XVisualInfo vi_in; | |
| 109 int out_count; | |
| 110 | |
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111 XGetWindowAttributes(SDL_Display, SDL_Window, &a); |
| 0 | 112 vi_in.screen = SDL_Screen; |
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113 vi_in.visualid = XVisualIDFromVisual(a.visual); |
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114 glx_visualinfo = XGetVisualInfo(SDL_Display, |
| 0 | 115 VisualScreenMask|VisualIDMask, &vi_in, &out_count); |
| 116 return glx_visualinfo; | |
| 117 } | |
| 118 | |
| 119 /* Setup our GLX attributes according to the gl_config. */ | |
|
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120 i = 0; |
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121 attribs[i++] = GLX_RGBA; |
| 0 | 122 attribs[i++] = GLX_RED_SIZE; |
| 123 attribs[i++] = this->gl_config.red_size; | |
| 124 attribs[i++] = GLX_GREEN_SIZE; | |
| 125 attribs[i++] = this->gl_config.green_size; | |
| 126 attribs[i++] = GLX_BLUE_SIZE; | |
| 127 attribs[i++] = this->gl_config.blue_size; | |
| 128 | |
| 129 if( this->gl_config.alpha_size ) { | |
| 130 attribs[i++] = GLX_ALPHA_SIZE; | |
| 131 attribs[i++] = this->gl_config.alpha_size; | |
| 132 } | |
| 133 | |
| 134 if( this->gl_config.buffer_size ) { | |
|
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135 attribs[i++] = GLX_BUFFER_SIZE; |
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136 attribs[i++] = this->gl_config.buffer_size; |
| 0 | 137 } |
| 138 | |
| 139 if( this->gl_config.double_buffer ) { | |
| 140 attribs[i++] = GLX_DOUBLEBUFFER; | |
| 141 } | |
| 142 | |
| 143 attribs[i++] = GLX_DEPTH_SIZE; | |
| 144 attribs[i++] = this->gl_config.depth_size; | |
| 145 | |
| 146 if( this->gl_config.stencil_size ) { | |
| 147 attribs[i++] = GLX_STENCIL_SIZE; | |
| 148 attribs[i++] = this->gl_config.stencil_size; | |
| 149 } | |
| 150 | |
| 151 if( this->gl_config.accum_red_size ) { | |
|
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152 attribs[i++] = GLX_ACCUM_RED_SIZE; |
| 0 | 153 attribs[i++] = this->gl_config.accum_red_size; |
| 154 } | |
| 155 | |
| 156 if( this->gl_config.accum_green_size ) { | |
|
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157 attribs[i++] = GLX_ACCUM_GREEN_SIZE; |
| 0 | 158 attribs[i++] = this->gl_config.accum_green_size; |
| 159 } | |
| 160 | |
| 161 if( this->gl_config.accum_blue_size ) { | |
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162 attribs[i++] = GLX_ACCUM_BLUE_SIZE; |
| 0 | 163 attribs[i++] = this->gl_config.accum_blue_size; |
| 164 } | |
| 165 | |
| 166 if( this->gl_config.accum_alpha_size ) { | |
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167 attribs[i++] = GLX_ACCUM_ALPHA_SIZE; |
| 0 | 168 attribs[i++] = this->gl_config.accum_alpha_size; |
| 169 } | |
| 170 | |
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171 if( this->gl_config.stereo ) { |
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172 attribs[i++] = GLX_STEREO; |
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173 } |
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174 |
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175 if( this->gl_config.multisamplebuffers ) { |
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176 attribs[i++] = GLX_SAMPLE_BUFFERS_ARB; |
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177 attribs[i++] = this->gl_config.multisamplebuffers; |
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178 } |
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179 |
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180 if( this->gl_config.multisamplesamples ) { |
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181 attribs[i++] = GLX_SAMPLES_ARB; |
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182 attribs[i++] = this->gl_config.multisamplesamples; |
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183 } |
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184 |
| 1737 | 185 if( this->gl_config.accelerated >= 0 && |
| 186 glXExtensionSupported(this, "GLX_EXT_visual_rating") ) { | |
| 187 attribs[i++] = GLX_VISUAL_CAVEAT_EXT; | |
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188 attribs[i++] = GLX_NONE_EXT; |
| 1737 | 189 } |
| 190 | |
| 0 | 191 #ifdef GLX_DIRECT_COLOR /* Try for a DirectColor visual for gamma support */ |
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192 if ( !SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) { |
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193 attribs[i++] = GLX_X_VISUAL_TYPE; |
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194 attribs[i++] = GLX_DIRECT_COLOR; |
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195 } |
| 0 | 196 #endif |
| 197 attribs[i++] = None; | |
| 198 | |
| 199 glx_visualinfo = this->gl_data->glXChooseVisual(GFX_Display, | |
| 200 SDL_Screen, attribs); | |
| 201 #ifdef GLX_DIRECT_COLOR | |
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202 if( !glx_visualinfo && !SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) { /* No DirectColor visual? Try again.. */ |
| 0 | 203 attribs[i-3] = None; |
| 204 glx_visualinfo = this->gl_data->glXChooseVisual(GFX_Display, | |
| 205 SDL_Screen, attribs); | |
| 206 } | |
| 207 #endif | |
| 208 if( !glx_visualinfo ) { | |
| 209 SDL_SetError( "Couldn't find matching GLX visual"); | |
| 210 return NULL; | |
| 211 } | |
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212 /* |
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213 printf("Found GLX visual 0x%x\n", glx_visualinfo->visualid); |
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214 */ |
| 0 | 215 return glx_visualinfo; |
| 216 #else | |
| 217 SDL_SetError("X11 driver not configured with OpenGL"); | |
| 218 return NULL; | |
| 219 #endif | |
| 220 } | |
| 221 | |
| 222 int X11_GL_CreateWindow(_THIS, int w, int h) | |
| 223 { | |
| 224 int retval; | |
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225 #if SDL_VIDEO_OPENGL_GLX |
| 0 | 226 XSetWindowAttributes attributes; |
| 227 unsigned long mask; | |
| 228 unsigned long black; | |
| 229 | |
| 230 black = (glx_visualinfo->visual == DefaultVisual(SDL_Display, | |
| 231 SDL_Screen)) | |
| 232 ? BlackPixel(SDL_Display, SDL_Screen) : 0; | |
| 233 attributes.background_pixel = black; | |
| 234 attributes.border_pixel = black; | |
| 235 attributes.colormap = SDL_XColorMap; | |
| 236 mask = CWBackPixel | CWBorderPixel | CWColormap; | |
| 237 | |
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238 SDL_Window = XCreateWindow(SDL_Display, WMwindow, |
| 0 | 239 0, 0, w, h, 0, glx_visualinfo->depth, |
| 240 InputOutput, glx_visualinfo->visual, | |
| 241 mask, &attributes); | |
| 242 if ( !SDL_Window ) { | |
| 243 SDL_SetError("Could not create window"); | |
| 244 return -1; | |
| 245 } | |
| 246 retval = 0; | |
| 247 #else | |
| 248 SDL_SetError("X11 driver not configured with OpenGL"); | |
| 249 retval = -1; | |
| 250 #endif | |
| 251 return(retval); | |
| 252 } | |
| 253 | |
| 254 int X11_GL_CreateContext(_THIS) | |
| 255 { | |
| 256 int retval; | |
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257 #if SDL_VIDEO_OPENGL_GLX |
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258 |
| 0 | 259 /* We do this to create a clean separation between X and GLX errors. */ |
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Updated dynamic X11 code. See details in Bugzilla #170.
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260 XSync( SDL_Display, False ); |
| 0 | 261 glx_context = this->gl_data->glXCreateContext(GFX_Display, |
| 262 glx_visualinfo, NULL, True); | |
|
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263 XSync( GFX_Display, False ); |
| 0 | 264 |
|
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265 if ( glx_context == NULL ) { |
| 0 | 266 SDL_SetError("Could not create GL context"); |
|
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267 return(-1); |
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268 } |
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269 if ( X11_GL_MakeCurrent(this) < 0 ) { |
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270 return(-1); |
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271 } |
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272 gl_active = 1; |
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273 |
|
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Check correct glX extension name for swap_control, but it doesn't look like
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274 if ( !glXExtensionSupported(this, "GLX_SGI_swap_control") ) { |
|
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275 this->gl_data->glXSwapIntervalSGI = NULL; |
| 0 | 276 } |
| 1737 | 277 if ( !glXExtensionSupported(this, "GLX_MESA_swap_control") ) { |
|
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278 this->gl_data->glXSwapIntervalMESA = NULL; |
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279 this->gl_data->glXGetSwapIntervalMESA = NULL; |
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280 } |
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281 if ( this->gl_config.swap_control >= 0 ) { |
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282 if ( this->gl_data->glXSwapIntervalMESA ) { |
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283 this->gl_data->glXSwapIntervalMESA(this->gl_config.swap_control); |
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284 } else if ( this->gl_data->glXSwapIntervalSGI ) { |
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285 this->gl_data->glXSwapIntervalSGI(this->gl_config.swap_control); |
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286 } |
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287 } |
| 0 | 288 #else |
| 289 SDL_SetError("X11 driver not configured with OpenGL"); | |
| 290 #endif | |
| 291 if ( gl_active ) { | |
| 292 retval = 0; | |
| 293 } else { | |
| 294 retval = -1; | |
| 295 } | |
| 296 return(retval); | |
| 297 } | |
| 298 | |
| 299 void X11_GL_Shutdown(_THIS) | |
| 300 { | |
|
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301 #if SDL_VIDEO_OPENGL_GLX |
| 0 | 302 /* Clean up OpenGL */ |
| 303 if( glx_context ) { | |
| 304 this->gl_data->glXMakeCurrent(GFX_Display, None, NULL); | |
| 305 | |
| 306 if (glx_context != NULL) | |
| 307 this->gl_data->glXDestroyContext(GFX_Display, glx_context); | |
| 308 | |
| 309 glx_context = NULL; | |
| 310 } | |
| 311 gl_active = 0; | |
|
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312 #endif /* SDL_VIDEO_OPENGL_GLX */ |
| 0 | 313 } |
| 314 | |
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315 #if SDL_VIDEO_OPENGL_GLX |
| 0 | 316 |
| 317 /* Make the current context active */ | |
| 318 int X11_GL_MakeCurrent(_THIS) | |
| 319 { | |
| 320 int retval; | |
|
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321 |
| 0 | 322 retval = 0; |
| 323 if ( ! this->gl_data->glXMakeCurrent(GFX_Display, | |
| 324 SDL_Window, glx_context) ) { | |
| 325 SDL_SetError("Unable to make GL context current"); | |
| 326 retval = -1; | |
| 327 } | |
|
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|
328 XSync( GFX_Display, False ); |
| 0 | 329 |
| 330 /* More Voodoo X server workarounds... Grr... */ | |
| 331 SDL_Lock_EventThread(); | |
| 332 X11_CheckDGAMouse(this); | |
| 333 SDL_Unlock_EventThread(); | |
| 334 | |
| 335 return(retval); | |
| 336 } | |
| 337 | |
| 338 /* Get attribute data from glX. */ | |
| 339 int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value) | |
| 340 { | |
|
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341 int retval = -1; |
|
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342 int unsupported = 0; |
| 0 | 343 int glx_attrib = None; |
| 344 | |
| 345 switch( attrib ) { | |
| 346 case SDL_GL_RED_SIZE: | |
| 347 glx_attrib = GLX_RED_SIZE; | |
| 348 break; | |
| 349 case SDL_GL_GREEN_SIZE: | |
| 350 glx_attrib = GLX_GREEN_SIZE; | |
| 351 break; | |
| 352 case SDL_GL_BLUE_SIZE: | |
| 353 glx_attrib = GLX_BLUE_SIZE; | |
| 354 break; | |
| 355 case SDL_GL_ALPHA_SIZE: | |
| 356 glx_attrib = GLX_ALPHA_SIZE; | |
| 357 break; | |
| 358 case SDL_GL_DOUBLEBUFFER: | |
| 359 glx_attrib = GLX_DOUBLEBUFFER; | |
| 360 break; | |
| 361 case SDL_GL_BUFFER_SIZE: | |
| 362 glx_attrib = GLX_BUFFER_SIZE; | |
| 363 break; | |
| 364 case SDL_GL_DEPTH_SIZE: | |
| 365 glx_attrib = GLX_DEPTH_SIZE; | |
| 366 break; | |
| 367 case SDL_GL_STENCIL_SIZE: | |
| 368 glx_attrib = GLX_STENCIL_SIZE; | |
| 369 break; | |
| 370 case SDL_GL_ACCUM_RED_SIZE: | |
| 371 glx_attrib = GLX_ACCUM_RED_SIZE; | |
| 372 break; | |
| 373 case SDL_GL_ACCUM_GREEN_SIZE: | |
| 374 glx_attrib = GLX_ACCUM_GREEN_SIZE; | |
| 375 break; | |
| 376 case SDL_GL_ACCUM_BLUE_SIZE: | |
| 377 glx_attrib = GLX_ACCUM_BLUE_SIZE; | |
| 378 break; | |
| 379 case SDL_GL_ACCUM_ALPHA_SIZE: | |
| 380 glx_attrib = GLX_ACCUM_ALPHA_SIZE; | |
| 381 break; | |
|
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8a43e0cbf02f
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382 case SDL_GL_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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383 glx_attrib = GLX_STEREO; |
|
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Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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384 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
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|
385 case SDL_GL_MULTISAMPLEBUFFERS: |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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386 glx_attrib = GLX_SAMPLE_BUFFERS_ARB; |
|
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387 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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388 case SDL_GL_MULTISAMPLESAMPLES: |
|
655
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389 glx_attrib = GLX_SAMPLES_ARB; |
|
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390 break; |
| 1737 | 391 case SDL_GL_ACCELERATED_VISUAL: |
| 392 if ( glXExtensionSupported(this, "GLX_EXT_visual_rating") ) { | |
| 393 glx_attrib = GLX_VISUAL_CAVEAT_EXT; | |
| 394 retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value); | |
| 395 if ( *value == GLX_SLOW_VISUAL_EXT ) { | |
| 396 *value = SDL_FALSE; | |
| 397 } else { | |
| 398 *value = SDL_TRUE; | |
| 399 } | |
| 400 return retval; | |
| 401 } else { | |
|
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|
402 unsupported = 1; |
| 1737 | 403 } |
| 404 break; | |
|
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Implemented bug #2, 117:
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|
405 case SDL_GL_SWAP_CONTROL: |
|
3b2a92126f4d
Implemented bug #2, 117:
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|
406 if ( this->gl_data->glXGetSwapIntervalMESA ) { |
| 1880 | 407 *value = this->gl_data->glXGetSwapIntervalMESA(); |
| 408 return(0); | |
|
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|
409 } else { |
|
4092
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Set an error message when SDL_GL_SetAttribute() fails because we can't support
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changeset
|
410 unsupported = 1; |
|
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|
411 } |
|
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Implemented bug #2, 117:
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|
412 break; |
| 0 | 413 default: |
|
4092
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Set an error message when SDL_GL_SetAttribute() fails because we can't support
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|
414 unsupported = 1; |
|
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Set an error message when SDL_GL_SetAttribute() fails because we can't support
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|
415 break; |
| 0 | 416 } |
| 417 | |
|
4092
2b32a416d202
Set an error message when SDL_GL_SetAttribute() fails because we can't support
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|
418 if (unsupported) { |
|
2b32a416d202
Set an error message when SDL_GL_SetAttribute() fails because we can't support
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|
419 SDL_SetError("OpenGL attribute is unsupported on this system"); |
|
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|
420 } else { |
|
2b32a416d202
Set an error message when SDL_GL_SetAttribute() fails because we can't support
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|
421 retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value); |
|
2b32a416d202
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|
422 } |
| 0 | 423 return retval; |
| 424 } | |
| 425 | |
| 426 void X11_GL_SwapBuffers(_THIS) | |
| 427 { | |
| 428 this->gl_data->glXSwapBuffers(GFX_Display, SDL_Window); | |
| 429 } | |
| 430 | |
|
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|
431 #endif /* SDL_VIDEO_OPENGL_GLX */ |
| 0 | 432 |
| 1861 | 433 #define OPENGL_REQUIRS_DLOPEN |
| 434 #if defined(OPENGL_REQUIRS_DLOPEN) && defined(SDL_LOADSO_DLOPEN) | |
| 435 #include <dlfcn.h> | |
| 436 #define GL_LoadObject(X) dlopen(X, (RTLD_NOW|RTLD_GLOBAL)) | |
| 437 #define GL_LoadFunction dlsym | |
| 438 #define GL_UnloadObject dlclose | |
| 439 #else | |
| 440 #define GL_LoadObject SDL_LoadObject | |
| 441 #define GL_LoadFunction SDL_LoadFunction | |
| 442 #define GL_UnloadObject SDL_UnloadObject | |
| 443 #endif | |
| 444 | |
| 0 | 445 void X11_GL_UnloadLibrary(_THIS) |
| 446 { | |
|
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New configure-based build system. Still work in progress, but much improved
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changeset
|
447 #if SDL_VIDEO_OPENGL_GLX |
| 0 | 448 if ( this->gl_config.driver_loaded ) { |
|
1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
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changeset
|
449 |
| 1861 | 450 GL_UnloadObject(this->gl_config.dll_handle); |
| 0 | 451 |
| 452 this->gl_data->glXGetProcAddress = NULL; | |
| 453 this->gl_data->glXChooseVisual = NULL; | |
| 454 this->gl_data->glXCreateContext = NULL; | |
| 455 this->gl_data->glXDestroyContext = NULL; | |
| 456 this->gl_data->glXMakeCurrent = NULL; | |
| 457 this->gl_data->glXSwapBuffers = NULL; | |
|
1736
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Implemented bug #2, 117:
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changeset
|
458 this->gl_data->glXSwapIntervalSGI = NULL; |
|
3b2a92126f4d
Implemented bug #2, 117:
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diff
changeset
|
459 this->gl_data->glXSwapIntervalMESA = NULL; |
|
3b2a92126f4d
Implemented bug #2, 117:
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diff
changeset
|
460 this->gl_data->glXGetSwapIntervalMESA = NULL; |
| 0 | 461 |
| 462 this->gl_config.dll_handle = NULL; | |
| 463 this->gl_config.driver_loaded = 0; | |
| 464 } | |
| 465 #endif | |
| 466 } | |
| 467 | |
|
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New configure-based build system. Still work in progress, but much improved
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changeset
|
468 #if SDL_VIDEO_OPENGL_GLX |
|
1182
e8e8dcb68e7a
X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
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changeset
|
469 |
| 0 | 470 /* Passing a NULL path means load pointers from the application */ |
| 471 int X11_GL_LoadLibrary(_THIS, const char* path) | |
| 472 { | |
|
1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
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changeset
|
473 void* handle = NULL; |
| 0 | 474 |
|
1182
e8e8dcb68e7a
X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
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|
475 if ( gl_active ) { |
|
e8e8dcb68e7a
X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
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|
476 SDL_SetError("OpenGL context already created"); |
|
e8e8dcb68e7a
X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
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changeset
|
477 return -1; |
|
e8e8dcb68e7a
X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
Ryan C. Gordon <icculus@icculus.org>
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diff
changeset
|
478 } |
|
e8e8dcb68e7a
X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
Ryan C. Gordon <icculus@icculus.org>
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changeset
|
479 |
|
e8e8dcb68e7a
X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
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diff
changeset
|
480 if ( path == NULL ) { |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1315
diff
changeset
|
481 path = SDL_getenv("SDL_VIDEO_GL_DRIVER"); |
| 0 | 482 if ( path == NULL ) { |
| 483 path = DEFAULT_OPENGL; | |
| 484 } | |
|
1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
parents:
1182
diff
changeset
|
485 } |
|
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
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diff
changeset
|
486 |
| 1861 | 487 handle = GL_LoadObject(path); |
|
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New configure-based build system. Still work in progress, but much improved
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changeset
|
488 if ( handle == NULL ) { |
|
3905
0e0883cb7137
Add error message if not using SDL_LoadObject
Patrice Mandin <patmandin@gmail.com>
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1880
diff
changeset
|
489 #if defined(OPENGL_REQUIRS_DLOPEN) && defined(SDL_LOADSO_DLOPEN) |
|
0e0883cb7137
Add error message if not using SDL_LoadObject
Patrice Mandin <patmandin@gmail.com>
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|
490 SDL_SetError("Failed loading %s", path); |
|
0e0883cb7137
Add error message if not using SDL_LoadObject
Patrice Mandin <patmandin@gmail.com>
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diff
changeset
|
491 #else |
|
1361
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New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
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|
492 /* SDL_LoadObject() will call SDL_SetError() for us. */ |
|
3905
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Add error message if not using SDL_LoadObject
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|
493 #endif |
|
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New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
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|
494 return -1; |
| 0 | 495 } |
| 496 | |
| 497 /* Unload the old driver and reset the pointers */ | |
| 498 X11_GL_UnloadLibrary(this); | |
| 499 | |
| 500 /* Load new function pointers */ | |
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501 this->gl_data->glXGetProcAddress = |
| 1861 | 502 (void *(*)(const GLubyte *)) GL_LoadFunction(handle, "glXGetProcAddressARB"); |
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503 this->gl_data->glXChooseVisual = |
| 1861 | 504 (XVisualInfo *(*)(Display *, int, int *)) GL_LoadFunction(handle, "glXChooseVisual"); |
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505 this->gl_data->glXCreateContext = |
| 1861 | 506 (GLXContext (*)(Display *, XVisualInfo *, GLXContext, int)) GL_LoadFunction(handle, "glXCreateContext"); |
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507 this->gl_data->glXDestroyContext = |
| 1861 | 508 (void (*)(Display *, GLXContext)) GL_LoadFunction(handle, "glXDestroyContext"); |
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509 this->gl_data->glXMakeCurrent = |
| 1861 | 510 (int (*)(Display *, GLXDrawable, GLXContext)) GL_LoadFunction(handle, "glXMakeCurrent"); |
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511 this->gl_data->glXSwapBuffers = |
| 1861 | 512 (void (*)(Display *, GLXDrawable)) GL_LoadFunction(handle, "glXSwapBuffers"); |
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513 this->gl_data->glXGetConfig = |
| 1861 | 514 (int (*)(Display *, XVisualInfo *, int, int *)) GL_LoadFunction(handle, "glXGetConfig"); |
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515 this->gl_data->glXQueryExtensionsString = |
| 1861 | 516 (const char *(*)(Display *, int)) GL_LoadFunction(handle, "glXQueryExtensionsString"); |
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517 this->gl_data->glXSwapIntervalSGI = |
| 1861 | 518 (int (*)(int)) GL_LoadFunction(handle, "glXSwapIntervalSGI"); |
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519 this->gl_data->glXSwapIntervalMESA = |
| 1861 | 520 (GLint (*)(unsigned)) GL_LoadFunction(handle, "glXSwapIntervalMESA"); |
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521 this->gl_data->glXGetSwapIntervalMESA = |
| 1861 | 522 (GLint (*)(void)) GL_LoadFunction(handle, "glXGetSwapIntervalMESA"); |
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e94b0d7c33bc
Merged useful fixes from 1.3 branch
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523 |
| 0 | 524 if ( (this->gl_data->glXChooseVisual == NULL) || |
| 525 (this->gl_data->glXCreateContext == NULL) || | |
| 526 (this->gl_data->glXDestroyContext == NULL) || | |
| 527 (this->gl_data->glXMakeCurrent == NULL) || | |
| 528 (this->gl_data->glXSwapBuffers == NULL) || | |
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529 (this->gl_data->glXGetConfig == NULL) || |
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530 (this->gl_data->glXQueryExtensionsString == NULL)) { |
| 0 | 531 SDL_SetError("Could not retrieve OpenGL functions"); |
| 532 return -1; | |
| 533 } | |
| 534 | |
| 535 this->gl_config.dll_handle = handle; | |
| 536 this->gl_config.driver_loaded = 1; | |
| 537 if ( path ) { | |
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538 SDL_strlcpy(this->gl_config.driver_path, path, |
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539 SDL_arraysize(this->gl_config.driver_path)); |
| 0 | 540 } else { |
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541 *this->gl_config.driver_path = '\0'; |
| 0 | 542 } |
| 543 return 0; | |
| 544 } | |
| 545 | |
| 546 void *X11_GL_GetProcAddress(_THIS, const char* proc) | |
| 547 { | |
| 548 void* handle; | |
| 549 | |
| 550 handle = this->gl_config.dll_handle; | |
| 551 if ( this->gl_data->glXGetProcAddress ) { | |
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Fixed compile warnings with gcc 4
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552 return this->gl_data->glXGetProcAddress((const GLubyte *)proc); |
| 0 | 553 } |
| 1861 | 554 return GL_LoadFunction(handle, proc); |
| 0 | 555 } |
| 556 | |
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19418e4422cb
New configure-based build system. Still work in progress, but much improved
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557 #endif /* SDL_VIDEO_OPENGL_GLX */ |